/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.type;
import java.io.ByteArrayInputStream;
import java.sql.Blob;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Types;
import java.util.Map;
import org.dom4j.Node;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.Hibernate;
import org.hibernate.engine.Mapping;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.util.ArrayHelper;
/**
* Map a Byte[] into a Blob
* Experimental
*
* @deprecated replaced by Hibernate Core's {@link org.hibernate.type.WrappedMaterializedBlobType}
*
* @author Emmanuel Bernard
*/
@Deprecated
public class ByteArrayBlobType extends AbstractLobType {
private static final int[] TYPES = new int[] { Types.BLOB };
public int[] sqlTypes(Mapping mapping) {
return TYPES;
}
@Override
public boolean isEqual(Object x, Object y, EntityMode entityMode, SessionFactoryImplementor factory) {
if ( x == y ) return true;
if ( x == null || y == null ) return false;
if ( x instanceof Byte[] ) {
Object[] o1 = (Object[]) x;
Object[] o2 = (Object[]) y;
return ArrayHelper.isEquals( o1, o2 );
}
else {
byte[] c1 = (byte[]) x;
byte[] c2 = (byte[]) y;
return ArrayHelper.isEquals( c1, c2 );
}
}
public int getHashCode(Object x, EntityMode entityMode, SessionFactoryImplementor factory) {
if ( x instanceof Character[] ) {
Object[] o = (Object[]) x;
return ArrayHelper.hash( o );
}
else {
byte[] c = (byte[]) x;
return ArrayHelper.hash( c );
}
}
public Object deepCopy(Object value, EntityMode entityMode, SessionFactoryImplementor factory)
throws HibernateException {
if ( value == null ) return null;
if ( value instanceof Byte[] ) {
Byte[] array = (Byte[]) value;
int length = array.length;
Byte[] copy = new Byte[length];
for ( int index = 0; index < length ; index++ ) {
copy[index] = Byte.valueOf( array[index].byteValue() );
}
return copy;
}
else {
byte[] array = (byte[]) value;
int length = array.length;
byte[] copy = new byte[length];
System.arraycopy( array, 0, copy, 0, length );
return copy;
}
}
public Class getReturnedClass() {
return Byte[].class;
}
protected Object get(ResultSet rs, String name) throws SQLException {
Blob blob = rs.getBlob( name );
if ( rs.wasNull() ) return null;
int length = (int) blob.length();
byte[] primaryResult = blob.getBytes( 1, length );
return wrap( primaryResult );
}
protected void set(PreparedStatement st, Object value, int index, SessionImplementor session) throws SQLException {
if ( value == null ) {
st.setNull( index, sqlTypes( null )[0] );
}
else {
byte[] toSet = unWrap( value );
final boolean useInputStream = session.getFactory().getDialect().useInputStreamToInsertBlob();
if ( useInputStream ) {
st.setBinaryStream( index, new ByteArrayInputStream( toSet ), toSet.length );
}
else {
st.setBlob( index, Hibernate.getLobCreator( session ).createBlob( toSet ) );
}
}
}
public void setToXMLNode(Node node, Object value, SessionFactoryImplementor factory) throws HibernateException {
node.setText( toString( value ) );
}
public String toString(Object val) {
byte[] bytes = unWrap( val );
StringBuilder buf = new StringBuilder( 2 * bytes.length );
for ( int i = 0; i < bytes.length ; i++ ) {
String hexStr = Integer.toHexString( bytes[i] - Byte.MIN_VALUE );
if ( hexStr.length() == 1 ) buf.append( '0' );
buf.append( hexStr );
}
return buf.toString();
}
public String toLoggableString(Object value, SessionFactoryImplementor factory) {
return value == null ? "null" : toString( value );
}
public Object fromXMLNode(Node xml, Mapping factory) throws HibernateException {
String xmlText = xml.getText();
return xmlText == null || xmlText.length() == 0 ? null : fromString( xmlText );
}
private Object fromString(String xmlText) {
if ( xmlText == null ) {
return null;
}
if ( xmlText.length() % 2 != 0 ) {
throw new IllegalArgumentException( "The string is not a valid xml representation of a binary content." );
}
byte[] bytes = new byte[xmlText.length() / 2];
for ( int i = 0; i < bytes.length ; i++ ) {
String hexStr = xmlText.substring( i * 2, ( i + 1 ) * 2 );
bytes[i] = (byte) ( Integer.parseInt( hexStr, 16 ) + Byte.MIN_VALUE );
}
return wrap( bytes );
}
protected Object wrap(byte[] bytes) {
return wrapPrimitive( bytes );
}
protected byte[] unWrap(Object bytes) {
return unwrapNonPrimitive( (Byte[]) bytes );
}
private byte[] unwrapNonPrimitive(Byte[] bytes) {
int length = bytes.length;
byte[] result = new byte[length];
for ( int i = 0; i < length ; i++ ) {
result[i] = bytes[i].byteValue();
}
return result;
}
private Byte[] wrapPrimitive(byte[] bytes) {
int length = bytes.length;
Byte[] result = new Byte[length];
for ( int index = 0; index < length ; index++ ) {
result[index] = Byte.valueOf( bytes[index] );
}
return result;
}
public boolean isMutable() {
return true;
}
public Object replace(
Object original,
Object target,
SessionImplementor session,
Object owner,
Map copyCache
)
throws HibernateException {
if ( isEqual( original, target, session.getEntityMode() ) ) return original;
return deepCopy( original, session.getEntityMode(), session.getFactory() );
}
public boolean[] toColumnNullness(Object value, Mapping mapping) {
return value == null ? ArrayHelper.FALSE : ArrayHelper.TRUE;
}
}